Why are IP packets fragmented?

Related questions

1. Why is TCP 3 way handshake?
2. How are TCP packets reassembled?
3. Can TCP lost packets?
4. How do I fix high packet loss?
5. How does TCP handle out of order packets?
6. What is TCP option?
7. What is TCP ACK?
8. What are the three phases of the TCP three way handshake?
9. Do TCP packets arrive in order?
10. What is TCP header?

Tags

1. #process
2. #transmission
3. #breaks
4. #receiving
5. #packet
6. #fragments
7. #through
8. #pieces
9. #smaller
10. #protocol
11. #fragmentation
12. #original
13. #packets
14. #maximum
15. #internet
16. #reassembled
17. #resulting